| 摘要 |
PROBLEM TO BE SOLVED: To reduce load applied on a guide roller when a door is opened to improve durability in construction machinery provided with the slide door. SOLUTION: Horizontal front side and rear side support receive face parts 19, 39 are provided in a lower part roller assembly 14 and a center roller assembly 29 attached to the door 7, respectively. Front side and rear side support rollers 25, 41 supporting the support receive face parts, respectively, are provided on a cab 5 main body side to support the support receive face parts by a support roller when the door reaches an opening position. COPYRIGHT: (C)2004,JPO
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